Question

3/4x-2/3x=-5/2

Answer 1

\(\frac{3}{4}x-\frac{2}{3}x=\frac{-5}{2}\)

\(\left(\frac{3}{4}-\frac{2}{3}\right)x=\frac{-5}{2}\)

\(\left(\frac{9}{12}-\frac{8}{12}\right)x=\frac{-5}{2}\)

\(\frac{1}{12}x=\frac{-5}{2}\)

\(x=\frac{-5}{2}:\frac{1}{12}\)

\(x=\frac{-5}{2}.\frac{12}{1}\)

\(x=-30\)

Answer 2

   \(\frac{3}{4}x-\frac{2}{3}x=\frac{-5}{2}\)

 \(\left(\frac{3}{4}-\frac{2}{3}\right)x=\frac{-5}{2}\)

              \(\frac{1}{12}x=\frac{-5}{2}\)

                    \(x=\frac{-5}{2}:\frac{1}{12}\)

                    \(x=-30\)

Answer 3

3 / 4x - 2 / 3x = - 5 / 2

9 / 12x - 8 / 12x = -5 / 2

9- 8 / 12x = -5 / 2

1 / 12x = -5/ 2

12x . (-5) = 2

-60 x = 2

     x = 2 : -60

      x = 2 / - 60

      x = - 1 / 30

Vậy x = -1 / 30